How can I balance Lithium + Oxygen $\to$ Lithium oxide?

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None of the above

answer is A.

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Detailed Solution

Concept- On the left side of the equation, there are two oxygen atoms, yet there is only one oxygen atom on the right side. Since oxygen is already in its lowest unit, we are unable to reduce the amount on the left side; instead, we must change the right side in order to balance the number of oxygen atoms.
By producing two

lots
We finish up with two oxygen atoms on the right side as products (the same number as the left side). So now we have;

Right now, there are 4 lithium atoms, and only 1 is on the left.
Four lithium atoms are also required on the left side in order to correct this.
Thus, the balanced equation is

.
Hence, the correct answer is option (1).

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